WO2008035736A1 - Housing case, method for manufacturing the housing case and glass insert forming die used in the method - Google Patents
Housing case, method for manufacturing the housing case and glass insert forming die used in the method Download PDFInfo
- Publication number
- WO2008035736A1 WO2008035736A1 PCT/JP2007/068271 JP2007068271W WO2008035736A1 WO 2008035736 A1 WO2008035736 A1 WO 2008035736A1 JP 2007068271 W JP2007068271 W JP 2007068271W WO 2008035736 A1 WO2008035736 A1 WO 2008035736A1
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- WO
- WIPO (PCT)
- Prior art keywords
- flat plate
- housing case
- resin
- glass
- mold
- Prior art date
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14155—Positioning or centering articles in the mould using vacuum or suction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14688—Coating articles provided with a decoration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
- B29K2709/08—Glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3431—Telephones, Earphones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/44—Furniture or parts thereof
- B29L2031/445—Cabinets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0279—Improving the user comfort or ergonomics
- H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
Definitions
- Housing case method for manufacturing the housing case, and glass insert molding die used therefor
- the present invention relates to a housing case for a small electric device or communication device, which can give sufficient hardness to the front portion of the housing case, in particular, a portion covering a display screen such as an LCD. And a method for manufacturing the housing case and a glass insert molding die used therefor.
- the housing cases of these devices are provided with a hard coat layer of high / hardness on the front surface of the housing case, particularly on the portion covering the display screen such as an LCD, in order to enhance scratch resistance. Need to be stacked.
- a release layer, a node coat layer 103, a printing layer, and an adhesive layer are sequentially laminated on a base film, and the hard coat layer 103 is high in a portion that is a front surface of the housing case 100.
- a hard film is laminated so as to have hardness, and a continuous film in which a plurality of printing patterns having non-printing portions 102 are provided on the printing layer is continuously passed through a glass insert molding die, and the glass insert molding is performed.
- the synthetic resin layer 101 is formed while the continuous film is squeezed into the cavity shape of the glass insert molding mold, After the synthetic resin layer is cured, the housing case 100 (in which the hard coat layer 103, the printing layer, the adhesive layer, and the synthetic resin layer 101 are removed from the base film and the release layer) 38 reference) is disclosed.
- 104 is a display window covering the LCD display screen
- 105 is a button hole.
- the hard coat layer 103 is usually formed of a thermosetting resin or an active energy ray polymerizable resin such as an ultraviolet spring curable resin directly on a plastic substrate or 0.03-0. 5 ⁇ . It is manufactured by forming a thin film of about 3 to 10 m through a primer layer of about 10 m.
- the hard coat layer 103 made of a thin coating film is not sufficient as the hardness of the front portion of the housing case, particularly the portion covering a display screen such as an LCD or the like that requires high level and hardness.
- the present invention has been made in view of the above problems, and a housing case capable of giving sufficient hardness to a front portion of a housing case, particularly a portion covering a display screen such as an LCD, and the like, It is an object of the present invention to provide a method for manufacturing a housing case and a glass insert molding die used therefor.
- Patent Document 1 JP 2001-36258 A
- the characteristic configuration of the housing case according to the present invention for achieving the above object is used for a small electric device or communication device, and is approximately the same size as the front portion of the housing case, and is at least a glass plate. And a resin frame integrated with the flat plate so as to support the peripheral edge of the back surface of the flat plate.
- the flat plate has a decoration on the back surface of the glass plate.
- the housing case is such that the device includes a display device, and the flat plate has at least a display window portion for the display device, and at least a front surface and / or a back surface of the glass plate. It is preferable that the decoration is applied.
- the housing case is not decorated on the back surface of the glass plate, and the back surface of the glass plate and the resin frame are made of an adhesive layer for glass, a primer layer, and an adhesive for resin. It is preferable that they are integrated via the agent layer!
- the housing case is decorated on the back surface of the glass plate, and the layer constituting the decoration is an adhesive for glass in an integrated portion of the back surface of the flat plate and the resin frame. It is also preferable that the back surface of the flat plate and the resin frame are integrated with each other via a primer layer and a resin adhesive layer.
- the flat plate has an opening.
- the housing case is attached to the flat plate so as to support the periphery of the opening. It is preferable to further include an integrated opening resin frame.
- the housing case is preferably such that the resin frame covers the side surface of the flat plate.
- an integrated product of the flat plate and the resin frame is a box shape.
- the resin frame supports the entire periphery of the rear surface peripheral edge portion of the flat plate.
- the resin frame supports one to three sides of the rear surface peripheral edge portion of the flat plate.
- the resin frame is divided into a plurality of parts to support a rear peripheral edge portion of the flat plate.
- the resin frame is made of a resin material having a molding shrinkage rate of 0.6% or less.
- the characteristic configuration of the glass insert molding die used for forming the housing case according to the present invention for achieving the above object is that a glass plate is interposed between the fixed die and the movable die by clamping.
- the planar plate as a main component is sandwiched, and a cavity facing the peripheral surface of the flat plate facing the fixed mold and an end surface of the flat plate is formed, and the fixed mold force and the fixed mold of the flat plate
- a slide core having a bottom portion in contact with a peripheral edge portion of the opposite surface and a wall portion continuously contacting the end surface of the flat plate so as to be positioned, and a suction provided on a surface sandwiching the flat plate
- the leading edge wall portion can be moved back and forth in the mold clamping direction between the cavity forming position where the wall portion is separated from the flat plate
- the slide core is provided partially with respect to the entire circumference of the flat plate.
- a characteristic configuration of a method for manufacturing a housing case using a glass insert molding die according to the present invention to achieve the above object is to use the glass insert molding die described above, and In the state where the flat plate is moved to the flat plate positioning position, the step of arranging the flat plate on the surface holding the fixed flat plate, and the fixed flat plate on the surface holding the flat plate by suction. And a step of clamping the fixed mold and the movable mold that adsorb the flat plate, and after the mold clamping, the molten resin is put into the cavity in a state where the slide core is moved to the cavity forming position. And a step of integrating the resin frame with the flat plate by injection.
- the characteristic configuration of the method for manufacturing the housing case using the glass insert molding die according to the present invention for achieving the above object is characterized in that the glass insert molding die provided with the extrusion mechanism is used.
- the process is equipped with a process.
- the flat plate is a glass plate decorated.
- the flat plate is formed by sequentially forming a glass adhesive layer, a primer layer, and a resin adhesive layer on the glass plate.
- the flat plate has an opening in a portion sandwiched between the fixed mold and the movable mold.
- the material of the molten resin has a molding shrinkage rate of 0.6% or less.
- the housing case of the present invention includes a flat plate made of a glass plate and a resin frame integrated with the flat plate so as to support the peripheral edge of the back surface of the flat plate, the housing case It is possible to give sufficient strength to the front part of the LCD, especially the part that covers the display screen such as LCD.
- the resin frame is integrated so as to support the peripheral edge of the back surface of the flat plate mainly composed of the glass plate. Since the housing case can be obtained, sufficient hardness can be given to the front portion of the housing case, particularly the portion covering the display screen such as an LCD.
- the slide core provided on the glass insert molding die not only forms the cavity for molding the resin frame that supports the peripheral edge of the back surface, but also includes a flat plate positioning mechanism and, if necessary, glass.
- the housing case can be easily manufactured at low cost because it also serves as an extrusion mechanism for insert molded products.
- FIG. 1 is a perspective view showing an embodiment of a housing case according to the present invention.
- FIG. 2 is a cross-sectional view of the housing case shown in FIG.
- FIG. 3 is a cross-sectional view showing another embodiment of the housing case according to the present invention.
- FIG. 4 is a cross-sectional view showing another embodiment of the housing case according to the present invention.
- FIG. 5 is a cross-sectional view showing another embodiment of the housing case according to the present invention.
- FIG. 6 is a cross-sectional view showing another embodiment of the housing case according to the present invention.
- FIG. 7 is a rear view showing an embodiment of a housing case according to the present invention.
- FIG. 8 is a rear view showing another embodiment of the housing case according to the present invention.
- FIG. 9 is a rear view showing another embodiment of the housing case according to the present invention.
- FIG. 10 is a rear view showing another embodiment of the housing case according to the present invention.
- FIG. 11 is a rear view showing another embodiment of the housing case according to the present invention.
- FIG. 12 is a rear view showing another embodiment of the housing case according to the present invention.
- FIG. 13 is a perspective view showing another embodiment of the housing case according to the present invention.
- FIG. 14 is an enlarged cross-sectional view showing an embodiment of a flat plate structure of a housing case according to the present invention.
- Fig. 15 is a cross-sectional enlarged view showing another embodiment of the flat plate structure of the housing case according to the present invention.
- FIG. 16] is a perspective view showing another embodiment of the housing case according to the present invention
- FIG. 17] is a perspective view showing another embodiment of the housing case according to the present invention.
- FIG. 4 is a view of an embodiment of a fixed mold of a glass insert molding die according to the present invention as viewed from the movable mold side;
- FIG. 19 is a cross-sectional view of the fixed XIX—XIX line shown in FIG.
- Fig. 20 is a view of the state in which a flat plate is placed on a fixed mold as seen from the movable mold side.
- FIG. 21 is a cross-sectional view of the fixed XXI—XXI line shown in FIG.
- Fig. 22 is a cross-sectional view showing an embodiment of the manufacturing process of the housing case according to the present invention.
- Fig. 23 is a cross-sectional view showing an embodiment of the manufacturing process of the housing case according to the present invention.
- FIG. 24 is a cross-sectional view showing an embodiment of a manufacturing process of a housing case according to the present invention.
- Fig. 25 is a cross-sectional view showing an embodiment of the manufacturing process of the housing case according to the present invention.
- FIG. 26 is a view showing an example of a housing case obtained by using the fixed mold of FIG. 18, and FIG. 27] is another embodiment of the fixed mold of the glass insert molding die according to the present invention. Is a view from the movable mold side.
- Fig. 28 is a view of another embodiment of the glass insert molding die according to the present invention as seen from the movable mold side,
- FIG. 29 is a view showing an example of a housing case obtained using the fixed mold shown in FIG. 27.
- FIG. 30 is a view showing an example of a housing case obtained using the fixed mold shown in FIG.
- FIG. 31] is a view of another embodiment of the fixed mold of the glass insert molding die according to the present invention as viewed from the movable mold side.
- FIG. 32 is a cross-sectional view of the fixed type XXXII-XXXII line shown in FIG.
- FIG. 33 is a view showing an example of a housing case obtained using the fixed mold of FIG. 31, and
- FIG. 34 is another implementation of the fixed mold of the glass insert molding die according to the present invention. It is a sectional view showing an example,
- FIG. 35 is a view showing another example of a housing case obtained by using the fixed mold of FIG.
- FIG. 36 is a view showing an embodiment in the case where a transfer film is sandwiched between a fixed mold that adsorbs a flat plate of a glass insert molding mold according to the present invention and a movable mold;
- FIG. 37 shows an example when the mold is clamped after the process of sandwiching the transfer film using the glass insert molding die of FIG. 36.
- FIG. 38 is a perspective view showing a conventional housing case
- FIG. 39 is a cross-sectional view showing a state of molding shrinkage when a glass plate is inserted into a mold instead of a film having a hard coat layer, and the glass plate is integrated with the entire front surface of the housing case. is there.
- the housing case 1 shown in FIG. 1 is substantially the same as the front surface of the housing case and has a flat plate 2 made of at least a glass plate, and the back surface peripheral portion of the flat plate 2 is supported. And a resin frame 3 integrated with a flat plate.
- (b) is an exploded view of (a). It is integrated with the other back case (not shown), and by holding a board on which various electronic components are mounted inside these, a small electric device or communication device is configured.
- the flat plate 2 is composed of at least a glass plate, and this configuration can give sufficient hardness (9 mm or more) to the front portion of the housing case 1.
- the glass plate ordinary plate glass, tempered plate glass, polished plate glass and the like can be used.
- the thickness of the glass plate is preferably 0.3 mm to 2. Omm from the viewpoint of strength. More preferably, it is 0.5 mm to 2. Omm, and moreover, Nuna Mashou is approximately 0.8 mm to l.5 mm.
- the present inventor first made a conventional housing case.
- the synthetic resin layer 101 formed in the injection mold is molded and shrunk when cooled and solidified as shown in FIG. 39, and is in close contact with the flat plate 2 as shown in FIG. Molding shrinkage progresses only on the opposite surface side (for example, in the direction of the arrow in FIG. 39), and the resulting housing case 106 may be warped.
- the flat plate 2 was damaged when it could not withstand warping.
- the resin frame 3 is formed so as to be integrated only at the peripheral edge portion of the back surface of the flat plate 2.
- the resin frame 3 supports the entire periphery of the back surface of the flat plate 2. Since the resin frame 3 of the present invention is not in full contact with the flat plate 2, even if the resin frame 3 is molded and shrunk during cooling and solidification, the influence is not likely to reach the entire flat plate 2. Therefore, it is possible to prevent the obtained housing case from being warped.
- Examples of the resin frame 3 include general-purpose resins such as polystyrene resin, polyolefin resin, ABS resin, AS resin, and AN resin.
- general purpose resins such as polyphenylene oxide polystyrene resins, polycarbonate resins, polyacetal resins, polyacrylic resins, polycarbonate-modified polyphenylene ether resins, polybutylene terephthalate resins, polybutylene terephthalate resins, and ultrahigh molecular weight polyethylene resins.
- the flat plate 2 and the resin frame 3 are integrated as follows. First, the flat plate 2 is fed into a molding die composed of a movable die and a fixed die, and the cavity is sucked by vacuum suction or the like. After the flat plate 2 is fixed at a predetermined position on the surface and the molding die is closed, the molten resin is injected and filled into the cavity from the gate, and at the same time the resin frame 3 is formed, The flat plate 2 is bonded. After the resin frame 3 is cooled, the molding die is opened, and the integrated product of the flat plate 2 and the resin frame 3 is taken out. In the case where the molding die is a vertical type that opens in the vertical direction, the flat plate 2 can be fixed without performing vacuum suction or the like.
- the integrated product of the flat plate 2 and the resin frame 3 can be a box type (see FIGS. 2 to 4) or a lid type (see FIGS. 5 and 6: broken lines correspond).
- Back case). 2 is a cross-sectional view taken along the line II-II in FIG. 1, and FIGS. 3 to 6 are other embodiments of FIG. Regardless of the box type or the lid type, if the dimension of the flat plate 2 is slightly smaller than the dimension of the front surface of the housing case 1 as shown in FIGS. As shown, the degree of freedom in designing the external appearance of the housing case 1 can be increased as compared with the case where the dimension of the flat plate 2 is the same as the dimension of the front surface of the housing case 1.
- the housing case 1 it is possible to design the housing case 1 to have a rounded corner (see Fig. 2, Fig. 5 and Fig. 6). Further, in the box shape, as shown in FIGS. 2 and 3, if the integrated width of the flat plate 2 and the resin frame 3 is made larger than the thickness of the side wall of the box, the flat plate 2 is supported accordingly. Since the area increases, the strength of the housing case 1 can be increased.
- the configuration of the housing case 1 of the present invention is not limited to the above-described embodiment.
- the resin frame 3 supports the! Then, it may be made! /, (See FIGS. 7 to 10), and may be divided into a plurality of parts to support the peripheral edge of the back surface of the flat plate 2 (see FIGS. 11 and 11). (See Figure 12).
- the influence of molding shrinkage is from the entire surface of the flat plate 2 and to ⁇ . That is, the warp prevention effect of the housing case is improved as compared with the case where the resin frame 3 supports the entire periphery of the back surface peripheral edge portion of the flat plate 2.
- the flat plate 2 may be one in which the back surface of the glass plate is decorated (not shown). Since the glass plate has sufficient hardness (9H or more), the beauty of the decoration on the back surface that is visually recognized through the glass plate is not impaired.
- the decoration on the back surface of the glass plate is preferably performed by printing a decorative layer.
- the decorative layer is made of polychlorinated bur resin, polyamide resin, polyester resin, polyacrylic resin, polyurethane resin, polybulassal resin, polyester urethane resin, cellulose ester resin, alkyd. It is preferable to use a colored ink containing a resin or the like as a binder and containing a pigment or dye of an appropriate color as a colorant. A screen printing method or the like is preferably used as the printing method. Moreover, in the case of a single color solid, various coating methods such as a spray coating method can be adopted.
- the decorative layer may be a metal thin film layer or a combination of a printed layer and a metal thin film layer.
- the metal thin film layer is used to express metallic luster as a decorative layer, and is formed by a vacuum deposition method, a sputtering method, an ion plating method, a plating method, or the like.
- metal such as aluminum, nickel, gold, platinum, chromium, iron, copper, tin, indium, silver, titanium, lead, zinc, alloys or compounds of these depending on the metallic luster color to be expressed. .
- a solvent-soluble resin layer is formed in a portion where the metal thin film layer is not required, and then a metal thin film is formed on the entire surface and then solvent cleaning is performed.
- a solvent often used in this case is water or an aqueous solution.
- Another example is a method in which a metal thin film is formed over the entire surface, and then a resist layer is formed on a portion where the metal thin film is to be left, and etching is performed with acid or alkali to remove the resist layer. is there.
- the flat plate 2 is at least the surface of the glass plate or / and except for the display window portion for the display device.
- the back side may be decorated (see FIG. 13).
- (b) is an exploded view of (a), 2 ⁇ indicates a decorated part and 2 ⁇ indicates a non-decorated part.
- the surface of the glass plate is decorated, the glass plate has sufficient hardness (9 mm or more). Therefore, the visibility of the display screen of the display device that is visually recognized through the glass plate in the non-decorated portion 2B that is not easily damaged is not impaired.
- the glass plate has sufficient hardness (9H or more), and therefore, the surface of the glass plate is decorated with little damage.
- the display not only is the display screen easy to see! /, But also the decorative part 2A! / It will not be.
- the flat plate 2 has the flat plate 2 and the resin frame.
- the back surface of the glass plate 2E is not decorated, and the back surface of the glass plate 2E and the resin frame 3 are interposed through the glass adhesive layer 2F, the primer layer 2G, and the resin adhesive layer 2H.
- Can be integrated see Fig. 14).
- 14 is an enlarged cross-sectional view of the flat plate 2, and 2D in FIG. 14 is a surface decoration layer.
- the glass adhesive layer 2F a known glass adhesive may be used.
- a glass adhesive made of a polyester resin may be used.
- the primer layer 2G a known primer material may be used.
- a primer material made of a polyester resin can be used.
- the primer layer 2G can be omitted.
- the resin adhesive layer 2H a known glass adhesive can be used.
- a resin adhesive made of vinyl chloride / acrylic resin can be used.
- the flat plate 2 has the flat plate as shown below.
- a layer for improving the adhesion between the resin frame 3 and the resin frame 3 may be provided. That is, the back surface of the glass plate 2E is decorated, and the layer constituting the decoration also serves as an adhesive layer for glass in the integrated portion of the back surface of the flat plate 2 and the resin frame 3.
- the back surface of the flat plate 2 and the resin frame 3 can be integrated with each other through the primer layer 2G and the resin adhesive layer 2H (see FIG. 15).
- FIG. 15 is an enlarged cross-sectional view of the flat plate 2.
- reference numeral 21 in FIG. 15 denotes a back surface decoration layer, which also serves as a glass adhesive layer in the integrated portion.
- the glass As the decorative and glass adhesive layer 2J, the glass The same material as the adhesive layer 2F can be used by adding a pigment or dye of an appropriate color as a colorant. In this case, since the glass plate has sufficient hardness (9H or more), the beauty of the decoration on the back surface that can be visually recognized through the glass plate is not damaged.
- a screen printing method or the like may be used as a method of forming the glass adhesive layer 2F, the primer layer 2G, the resin adhesive layer 2H, and the decorative and glass adhesive layer 2J.
- the housing case 1 of the present invention may be configured such that the flat plate 2 has an opening 2C (see FIG. 16).
- the housing case 1 shown in FIG. 16 is integrated with the other back case (not shown). Inside these, an electronic element such as a flash memory, a display device such as a liquid crystal panel, a piezoelectric speaker for emitting operation sound, A digital audio player is configured by holding a board with an operation panel inserted into the notch and the opening 2C.
- (b) is an exploded view of (a).
- the housing case 1 of the present invention has the opening 2C in the flat plate 2, it is integrated with the flat plate 2 so as to support the periphery of the opening 2C as shown in FIG.
- a resin frame 4 for openings may be further provided. By configuring in this way, the strength of the woozing case 1 can be increased.
- the opening resin frame 4 can have various embodiments similar to those of the resin frame 3 described above.
- (b) is an exploded view of (a).
- the housing case 1 of the present invention can be used when the side surface of the flat plate 2 is covered with the resin frame 3 so that no step is generated as shown in FIGS. 2, 5, and 6. Sometimes, the side surface of the flat plate 2 is caught by something and the flat plate 2 and the resin frame 3 are not likely to be separated.
- FIG. 26 29, 30, 33, and 35 the housing case 1 obtained in the present embodiment will be described with reference to FIGS. 26, 29, 30, 33, and 35.
- FIG. The housing case 1 shown in these drawings occupies most of the front surface of the housing case and is composed of at least a glass plate.
- a resin integrated with the flat plate 2 so as to support the flat plate 2 and the peripheral edge of the back surface of the flat plate 2 and to cover at least a portion of the end surface of the flat plate 2 that is continuous with the support portion.
- frame 3 With frame 3.
- (a) is a front view
- (b) is a rear view
- (c) and (d) are sectional views. It is integrated with the other back case (not shown), and by holding a substrate on which various electronic components are mounted, a small electric device or communication device is configured.
- the resin frame 3 is insert molded.
- the resin frame 3 is the entire back surface peripheral portion of the flat plate 2
- the resin frame 3 is the back surface peripheral portion of the flat plate 2.
- Some of them are notched! /, Almost support C-shaped parts! /, Ru. Since the resin frame 3 of the present invention is not in intimate contact with the flat plate 2, even if the resin frame 3 is molded and shrunk during cooling and solidification, the influence is difficult to reach the entire flat plate 2. Therefore, it is possible to prevent the obtained housing case from being warped.
- the flat plate 2 and the resin frame 3 are integrated using a glass insert molding die described below.
- This glass insert molding die clamps the flat plate 2 having a glass plate as a main component between the fixed die 15 and the movable die 10 by clamping, and the fixed die 15 of the flat plate 2 is fixed.
- a mold that forms a cavity facing the peripheral surface of the flat plate 2 and the end surface of the flat plate 2, wherein the fixed die 15 contacts the peripheral surface of the flat plate 2 facing the fixed die 15.
- a slide core 5 having a tip (hereinafter referred to as a tip wall portion 5a) and a wall portion (hereinafter referred to as a tip wall portion 5a) that contacts the end bottom surface 5b of the flat plate 2 so as to be positionable.
- FIG. 19 is a cross-sectional view taken along line XIX-XIX in FIG.
- the slide core 5 is configured such that the tip bottom 5b is fixed to the fixed mold 15 by a drive unit (not shown).
- a flat plate positioning position 1 (see FIG. 19, FIG. 21 and FIG. 22) that does not protrude from the surface sandwiching the flat plate 2 and makes the tip wall portion 5b contact the flat plate 2; and the tip bottom portion 5a and It is possible to advance and retreat in the mold clamping direction between a cavity forming position ⁇ ⁇ ⁇ (see FIGS. 23 and 24) that separates the tip wall portion 5b from the flat plate 2 together.
- the slide core 5 can be advanced to a glass insert molded product extrusion position III (see FIG. 25) where the tip bottom 5a protrudes from the flat plate contact surface 7 of the fixed die 15 as required. Can do.
- the tip bottom 5b of the slide core 5 and the flat plate contact surface 7 of the fixed mold 15 are flush with each other.
- a groove 14 may be formed (see FIG. 34).
- the area of the resin frame 3 integrated with the peripheral edge of the back surface of the flat plate 2 is increased by the amount that is filled in the groove portion 14 during molding.
- the tip bottom portion 5b may be aligned with the flat plate contact surface 7 of the fixed mold 15 as shown in FIGS. Since the positioning is possible if the portion 5b can be brought into contact with the end surface of the flat plate 2, the tip bottom portion 5b may be retracted from the flat plate contact surface 7 of the fixed die 15.
- the tip wall portion 5a that contacts the end face of the flat plate 2 so as to be positionable is, for example, two opposing faces as shown in FIG. 18 when viewed from a direction perpendicular to the mold parting surface 6.
- the present invention is not limited to this embodiment. It is only necessary to appropriately determine an arrangement so that the flat plate 2 is not displaced in accordance with the shape of the flat plate 2.
- the wall 5a can be arranged, or the tip wall 5a can be arranged on a part of each side of the flat plate 2.
- the shape of the flat plate 2 is not limited to a rectangle with rounded corners as shown in FIG. 18, but a rectangle with no rounded corners or an elliptical shape.
- the number of the slide cores 5 is not limited. Furthermore, the slide core 5 may be provided partially with respect to the entire periphery of the flat plate 2 as shown in FIG. 18, or the entire periphery of the flat plate 2 is completely surrounded by the tip wall portion 5a. May be.
- FIG. 21 is a cross-sectional view taken along line XXI—XXI in FIG.
- the flat plate 2 is sucked and fixed to the flat plate contact surface 7 by sucking air 12 from the suction holes 8 provided in the flat plate contact surface 7. (See Figure 22).
- means other than air suction may be used for adsorbing and fixing the flat plate.
- a suction cup may be provided on the surface sandwiching the flat plate 2.
- the movable mold 10 is moved forwardly toward the fixed mold 15 that adsorbs the flat plate 2 and clamped, and the movable mold 10 and the flat plate contact surface 7 of the fixed mold 15 are fixed.
- the flat plate 2 is sandwiched therebetween, and the fixed mold 15, the movable mold 10, and the flat plate 2 form a cavity 13 that is a mold space (see FIG. 23).
- the slide core 5 is moved backward by a driving unit (not shown) to a position where the tip bottom 5b is separated from the rear peripheral edge of the flat plate 2 by a predetermined distance, and the slide core 5
- the tip wall portion 5a and the tip bottom portion 5b are in contact with each other until now, and the molten resin can be filled up to that portion (cavity forming position 11).
- the backward movement of the slide core 5 may be performed at any timing immediately before the start of forward movement of the movable mold 10, during forward movement, or immediately after completion of forward movement.
- the resin frame 3 is filled with the molten resin injected through the gate 11 in the state where the slide core 5 is moved to the cavity forming position II.
- the glass plate molded product is a glass insert molded product, which is integrated with the flat plate 2 so as to support the peripheral edge of the back surface of the flat plate 2 and to cover at least a portion of the end surface of the flat plate 2 continuous to the support portion. Housing case 1 is obtained (see Fig. 24).
- Examples of the material of the molten resin include general-purpose resins such as polystyrene resin, polyolefin resin, ABS resin, AS resin, and AN resin.
- general-purpose resins such as polystyrene resin, polyolefin resin, ABS resin, AS resin, and AN resin.
- Super engineering such as general-purpose engineering resin, polysulfone resin, polyphenylene sulfide resin, polyphenylene oxide resin, polyarylate resin, polyetherimide resin, polyimide resin, liquid crystal polyester resin, polyallyl heat resistant resin Resin can also be used.
- resin material having a physical property of a molding shrinkage rate of 0.6% or less it is more preferable in terms of preventing the warp, such as polyacrylic resin.
- the resin frame 3 may be colored or may not be colored.
- the slide core 5 is advanced to the glass insert molded product extrusion position III by the drive unit. Move it (see Figure 25).
- the slide core 5 serves as an ejector pin, and the housing case 1 is satisfactorily separated from the fixed mold 15 and can be easily removed from the mold apparatus. If there is another dedicated ejector pin, it is not necessary to push the glass insert molded product through the slide core 5.
- the slide core 5 forms the resin frame 3 that supports the peripheral edge of the back surface.
- the housing case 1 can be easily manufactured at low cost because it also serves as a positioning mechanism for the flat plate 2 and, if necessary, an extrusion mechanism for the glass insert molded product.
- FIGS. 26 (c) and (d) are XXVIc-XXVIc cross-sectional view and XXVId-XXVId cross-sectional view, respectively, in FIG. 26 (b).
- FIGS. 29 (c) and (d) are XXIXc-XXIXc cross-sectional views and XXIXd-XXIXd cross-sectional views in FIG. 29 (b), respectively, and FIGS. 30 (c) and (d) are respectively shown in FIG. FIG.
- FIGS. 33 (c) and (d) are the XXXIIIc-XXXIIc and XXXIId-XXXIId cross-sectional views in FIG. 33 (b), respectively.
- (D) is a XXXVc-XXXVc cross-sectional view and a XXXVd-XXXVd cross-sectional view, respectively, in FIG. 35 (b).
- the portion of the flat plate 2 that does not correspond to the slide core 5 is shown in FIGS. 26, 33 and 3. As shown in FIG. 5, it is not necessary to integrate with the resin frame 3 at the entire peripheral edge and end surface of the back surface. For example, as shown in FIG. In addition, as shown in FIG. 30, there may be a portion that is not integrated with the resin frame 3 at the back edge portion and end face.
- the flat plate contact surface 7 in FIG. 18 is expanded to the lower inner wall of the cavity forming portion 9 as shown in FIG. Make sure that the molten resin is not filled in the relevant part of the part.
- the flat plate contact surface 7 in FIG. The inner wall is moved so that the molten resin is not filled in the peripheries of the rear surface and the end surface of the glass plate 2.
- the flat plate 2 may be a glass plate decorated as shown in Figs. 26, 29, 30, 33, and 35! It can be decorated! /, Na! /, Skeleton type.
- 2A is a decorative portion
- 2B is a non-decorative portion that becomes a transparent window.
- the back surface of the glass plate is decorated by printing a decorative layer.
- the decorative layer is made of polychlorinated bur resin, polyamide resin, polyester resin, polyacrylic resin, polyurethane resin, polybulassal resin, polyester urethane resin, cellulose ester resin, alkyd resin.
- a colored ink containing a resin or the like as a binder and an appropriate color pigment or dye as a colorant may be used.
- a screen printing method or the like may be used.
- various coating methods such as a spray coating method can be adopted.
- the decorative layer may be a metal thin film layer or a combination of a printed layer and a metal thin film layer.
- the metal thin film layer is used to express metallic luster as a decorative layer, and is formed by a vacuum deposition method, a sputtering method, an ion plating method, a plating method, or the like.
- metal such as aluminum, nickel, gold, platinum, chromium, iron, copper, tin, indium, silver, titanium, lead, zinc, alloys or compounds of these depending on the metallic luster color to be expressed. .
- a solvent-soluble resin layer is formed on a portion where the metal thin film layer is not required, and then the whole is formed thereon.
- a metal thin film is formed on the surface, and the unnecessary metal thin film is removed together with the solvent-soluble resin layer by solvent cleaning.
- a solvent often used in this case is water or an aqueous solution.
- Another example is a method in which a metal thin film is formed over the entire surface, and then a resist layer is formed on a portion where the metal thin film is to be left, and etching is performed with acid or alkali to remove the resist layer. is there.
- the adhesion between the flat plate 2 and the resin frame 3 can be improved.
- the glass insert molding die of the present invention is a molding simultaneous painting means 16 capable of sandwiching a transfer film 17 between the fixed mold 15 and the movable mold 10 adsorbing the flat plate 2. (See FIG. 36), and after the step of sandwiching the transfer film 17 between the fixed mold 15 and the movable mold 10 adsorbing the flat plate 2, the mold is clamped (see FIG. 37) to obtain a molten resin. Simultaneously with the injection, the painted portion of the transfer film 17 can be transferred to the resin frame 3 integrated with the flat plate 2. That is, the glass insert molding die of the present invention also functions as a molding simultaneous transfer die.
- the transfer film 17 has a transfer layer on a long base sheet.
- the transfer layer is formed by sequentially laminating a release layer, a design layer, an adhesive layer, and the like.
- the release layer is a layer that imparts peelability between the substrate sheet and the transfer layer.
- the design layer is a layer that imparts decorativeness and functionality to the surface of the injection-molded product.
- the design layer includes normal printed designs and conductive patterns made of conductive materials.
- the adhesive layer is a layer for adhering the transfer layer and the resin frame 3 as a molded product.
- the transfer film 17 may be fed by a predetermined pitch between the molds of the transfer film 15 with a film feeding device as shown in FIG. Or let it be sent in single sheets.
- a circular opening for the operation panel was provided on a glass plate 88mm long, 38mm wide, and lmm thick.
- a decorative layer was formed on one surface of the glass plate by screen printing using an ink containing a colorant and a polyester resin as a binder, except for the display window for a liquid crystal screen.
- a glass adhesive layer made of a polyester resin by a screen printing method, a primer layer made of a polyester resin, and vinyl chloride vinyl chloride are applied to the entire periphery of the non-decorated surface of the glass plate.
- a resin adhesive layer made of acrylic resin was sequentially formed to obtain a flat plate.
- This flat plate is fed into a molding die composed of a movable die and a fixed die, fixed at a predetermined position on the cavity surface by vacuum suction, and after the molding die is closed, it is melted from the gate. Injecting and filling the polyacrylic resin into the cavity to form a rectangular resin frame, the resin frame and the non-decorative surface of the flat plate are bonded to the resin adhesive layer, primer layer, and glass adhesive. Glued through layers. After cooling the resin frame, open the molding die and take out the one integrated with the resin frame around the entire periphery of the back surface of the flat plate, 90mm long, 40mm wide, 4mm high, corner Rlmm Obtained a digital nose audio player nosing case.
- a circular opening for the operation panel was provided on a glass plate 88mm long, 38mm wide, and lmm thick.
- an adhesive layer for decoration and glass is formed on one surface of the glass plate using an ink containing a colorant containing a polyester resin as a binder by a screen printing method except for a display window portion for a liquid crystal screen.
- a primer layer made of a polyester resin by a screen printing method and an adhesive for resin made of vinyl chloride / acrylic resin are formed on the entire periphery of the decorated surface of the glass plate. Layers were sequentially formed to obtain a flat plate.
- This flat plate is fed into a molding die composed of a movable die and a fixed die, fixed at a predetermined position on the cavity surface by vacuum suction, and after the molding die is closed, it is melted from the gate.
- the poly Acrylic resin was injected and filled into the cavity to form a rectangular resin frame, and at the same time, the resin frame and the decorative surface of the flat plate were bonded together through an adhesive layer for a resin and a primer layer. After cooling the resin frame, open the molding die and take out the product integrated with the resin frame all around the back edge of the flat plate, 90mm long, 40mm wide, 4mm high, corner Rlmm A housing case for a digital audio player was obtained.
- a flat plate is obtained by sequentially providing an adhesive layer for glass, a primer layer, and an adhesive layer for resin on the entire periphery of the opening portion of the non-decorative surface of the flat plate connected only by the peripheral edge of the glass plate, and then injection molding.
- the rectangular resin frame and the circular resin frame for the opening are formed simultaneously with the resin frame and the resin frame for the opening and the non-decorative surface of the flat plate by using the resin adhesive layer, the primer layer, and the glass.
- Example 1 was the same as Example 1 except that the adhesive layer was used for adhesion.
- a primer layer and a resin adhesive layer are sequentially provided on the entire periphery of the opening on the decorative surface of the flat plate connected only by the peripheral edge of the glass plate to obtain a flat plate, and a rectangular resin frame is formed by injection molding.
- the resin frame for the opening and the resin frame for the opening and the decorative surface of the flat plate were bonded together via the resin adhesive layer and the primer layer. Except for this, the procedure was the same as Example 2.
- Resin frame strength was the same as Example 3 except that it was divided into three.
- Example 4 was the same as Example 4 except that the resin frame and the opening resin frame were each divided into two.
- a circular opening for the operation panel was provided on a glass plate 88mm long, 38mm wide, and lmm thick.
- a decorative layer was formed on one surface of the glass plate by screen printing using an ink containing a colorant and a polyester resin as a binder, except for the display window for a liquid crystal screen.
- a glass adhesive layer made of a polyester resin by a screen printing method on the entire periphery of the periphery of the surface of the glass plate that is not decorated, A primer layer made of a polyester resin and a resin adhesive layer made of a vinyl chloride / acrylic resin were sequentially formed to obtain a flat plate.
- the flat plate is disposed on a surface of the fixed die that sandwiches the flat plate in a state where the slide core is moved to the flat plate positioning position.
- the positioned flat plate was sucked and fixed to the surface sandwiching the flat plate by sucking air from the suction holes.
- the flat resin is injected by injecting molten resin into the cavity in a state where the slide core is moved to the cavity forming position.
- a resin frame was integrated with the face plate.
- a circular opening for the operation panel was provided on a glass plate 88mm long, 38mm wide, and lmm thick.
- an adhesive layer for decoration and glass is formed on one surface of the glass plate using an ink containing a colorant containing a polyester resin as a binder by a screen printing method except for a display window portion for a liquid crystal screen.
- a primer layer made of a polyester resin by a screen printing method and an adhesive for resin made of vinyl chloride / acrylic resin are formed on the entire periphery of the decorated surface of the glass plate. Layers were sequentially formed to obtain a flat plate.
- Example 7 The same glass insert molding as in Example 7 was performed to obtain a housing case for a digital audio player having a length of 90 mm, a width of 40 mm, a height of 4 mm, and a corner portion of Rlmm.
- the present invention can be suitably used for, for example, a housing case of a small electric device or communication device, a manufacturing method of the housing case, and a glass insert molding die used therefor.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0718514-6A BRPI0718514A2 (en) | 2006-09-22 | 2007-09-20 | ACCOMMODATION COVERAGE, METHOD FOR MANUFACTURING ACCOMMODATION COVERAGE AND GLASS INSERT MATRIX USED THERE |
JP2008535384A JPWO2008035736A1 (en) | 2006-09-22 | 2007-09-20 | Housing case, method for manufacturing the housing case, and glass insert molding die used therefor |
EP07807635A EP2066162B1 (en) | 2006-09-22 | 2007-09-20 | Method for manufacturing a housing case and glass insert molding die used in the method |
CN2007800348643A CN101518168B (en) | 2006-09-22 | 2007-09-20 | Housing case, method for manufacturing the housing case and glass insert forming die used in the method |
KR1020097004882A KR101398278B1 (en) | 2006-09-22 | 2007-09-20 | Housing case, method for manufacturing the housing case and glass insert forming die used in the method |
US12/441,635 US8119048B2 (en) | 2006-09-22 | 2007-09-20 | Housing case, method for manufacturing housing case, and glass insert molding die used in same |
Applications Claiming Priority (4)
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JP2006-258126 | 2006-09-22 | ||
JP2006258126 | 2006-09-22 | ||
JP2006294799 | 2006-10-30 | ||
JP2006-294799 | 2006-10-30 |
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WO2008035736A1 true WO2008035736A1 (en) | 2008-03-27 |
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PCT/JP2007/068271 WO2008035736A1 (en) | 2006-09-22 | 2007-09-20 | Housing case, method for manufacturing the housing case and glass insert forming die used in the method |
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US (2) | US8119048B2 (en) |
EP (1) | EP2066162B1 (en) |
JP (2) | JPWO2008035736A1 (en) |
KR (1) | KR101398278B1 (en) |
CN (1) | CN101518168B (en) |
BR (1) | BRPI0718514A2 (en) |
TW (1) | TWI415545B (en) |
WO (1) | WO2008035736A1 (en) |
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Publication number | Publication date |
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CN101518168B (en) | 2011-12-07 |
EP2066162A4 (en) | 2011-01-19 |
JPWO2008035736A1 (en) | 2010-01-28 |
BRPI0718514A2 (en) | 2013-11-12 |
JP5068393B2 (en) | 2012-11-07 |
EP2066162A1 (en) | 2009-06-03 |
JP2012166567A (en) | 2012-09-06 |
TWI415545B (en) | 2013-11-11 |
KR20090057376A (en) | 2009-06-05 |
CN101518168A (en) | 2009-08-26 |
TW200824534A (en) | 2008-06-01 |
KR101398278B1 (en) | 2014-05-22 |
US20120055826A1 (en) | 2012-03-08 |
EP2066162B1 (en) | 2012-02-22 |
US20100014232A1 (en) | 2010-01-21 |
US8119048B2 (en) | 2012-02-21 |
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